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Snowcat [4.5K]
3 years ago
8

in science class Harry and classmates are performing a controlled scientific investigation. the teacher has already pick a topic

and testable question for the class to study and has provided background research on the topic. before performing the investigation what the students must to do first ?
Biology
2 answers:
Alex787 [66]3 years ago
5 0
Make an hypothesis
i guesss they have to make an hypothesis first



Aleks04 [339]3 years ago
5 0
First you need to think of the problem
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In this case, temperatures are not affected by the density of the population. However, temperatures affect the density of the population. Most individuals can only survive within an optimal temperature range.

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D. heterotrophic by ingestion, pseudopods

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Amoeboid movement is the mode of locomotion of protists and some  other eukaryotes. It involved the protrusion of cytoplasm, which exert pressure on the cell membrane to form pseudopodia and  the posterioly  evolved  <u>Uropods. </u>

<u />

<u>  </u>

<u>Sol-gel theory has been proposed to expalin this movements, The ectopalsm of amoeba is gelly-like , while the endiplams is less viscpus   and said to be sol. The interchange of the cytoplasmic fluis between the endo-and ecto plasm gives the SOL-GEL propulsion of the protopalms for the amoebic moveemnts .</u>

<u />

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